Question

By selling 125mangos, a man gain an amount equal to the selling price of 5mangos . find the gain per cent

Answer 1

answer-

let the selling price of each mango be 1

so selling price of 125 mangoes = 1*125=125

total sp = 125

now, profit = selling price of 5 mangoes

selling price of 5 mangoes = 1*5=5

so, profit = 5

now, sp=125

profit=5

cp = sp-profit

cp = 125-5

cp = 120

so, profit% = profit*100/cp

profit% = 5*100/cp

profit% = 5*100/120

profit% = 500/120

profit%= 4.167%

or 4%[round off]

hope it helps

have a nice day